Example usage for org.apache.commons.vfs2 FileObject exists

Introduction

In this page you can find the example usage for org.apache.commons.vfs2 FileObject exists.

Prototype

boolean exists() throws FileSystemException;

Source Link

Document

Determines if this file exists.

Usage

From source file:org.wso2.carbon.connector.FileCopy.java

/**
 * Copy files/*from  w  ww .ja  v  a 2  s .  co  m*/
 *
 * @param source         Location of the file
 * @param destination    new file location
 * @param filePattern    pattern of the file
 * @param messageContext The message context that is generated for processing the file
 * @param opts           FileSystemOptions
 * @return return a resultStatus
 */
private boolean copyFile(String source, String destination, String filePattern, MessageContext messageContext,
        FileSystemOptions opts) {
    boolean resultStatus = false;
    StandardFileSystemManager manager = null;
    try {
        manager = FileConnectorUtils.getManager();
        FileObject souFile = manager.resolveFile(source, opts);
        FileObject destFile = manager.resolveFile(destination, opts);
        if (StringUtils.isNotEmpty(filePattern)) {
            FileObject[] children = souFile.getChildren();
            for (FileObject child : children) {
                if (child.getType() == FileType.FILE) {
                    copy(source, destination, filePattern, opts);
                } else if (child.getType() == FileType.FOLDER) {
                    String newSource = source + File.separator + child.getName().getBaseName();
                    copyFile(newSource, destination, filePattern, messageContext, opts);
                }
            }
            resultStatus = true;
        } else {
            if (souFile.exists()) {
                if (souFile.getType() == FileType.FILE) {
                    InputStream fileIn = null;
                    OutputStream fileOut = null;
                    try {
                        String name = souFile.getName().getBaseName();
                        FileObject outFile = manager.resolveFile(destination + File.separator + name, opts);
                        //TODO make parameter sense
                        fileIn = souFile.getContent().getInputStream();
                        fileOut = outFile.getContent().getOutputStream();
                        IOUtils.copyLarge(fileIn, fileOut);
                        resultStatus = true;
                    } catch (FileSystemException e) {
                        log.error("Error while copying a file " + e.getMessage());
                    } finally {
                        try {
                            if (fileOut != null) {
                                fileOut.close();
                            }
                        } catch (Exception e) {
                            log.error("Error while closing OutputStream: " + e.getMessage(), e);
                        }
                        try {
                            if (fileIn != null) {
                                fileIn.close();
                            }
                        } catch (Exception e) {
                            log.error("Error while closing InputStream: " + e.getMessage(), e);
                        }
                    }
                } else if (souFile.getType() == FileType.FOLDER) {
                    destFile.copyFrom(souFile, Selectors.SELECT_ALL);
                    resultStatus = true;
                }
                if (log.isDebugEnabled()) {
                    log.debug("File copying completed from " + source + "to" + destination);
                }
            } else {
                log.error("The File Location does not exist.");
                resultStatus = false;
            }
        }
        return resultStatus;
    } catch (IOException e) {
        handleException("Unable to copy a file/folder", e, messageContext);
    } finally {
        if (manager != null) {
            manager.close();
        }
    }
    return resultStatus;
}

From source file:org.wso2.carbon.connector.FileCopyConnector.java

/**
 * Copy the file or folder from source to destination.
 *
 * @param messageContext The message context that is generated for processing the file.
 * @param opts           FileSystemOptions.
 * @return return true, if file/folder is successfully copied.
 *///from ww  w  .  j av  a2 s . c om
private boolean copyFile(String source, MessageContext messageContext, FileSystemOptions opts) {
    String destination = (String) ConnectorUtils.lookupTemplateParamater(messageContext,
            FileConstants.NEW_FILE_LOCATION);
    String filePattern = (String) ConnectorUtils.lookupTemplateParamater(messageContext,
            FileConstants.FILE_PATTERN);
    String includeParentDir = (String) ConnectorUtils.lookupTemplateParamater(messageContext,
            FileConstants.INCLUDE_PARENT_DIRECTORY);
    boolean includeParentDirectory = FileConstants.DEFAULT_INCLUDE_PARENT_DIRECTORY;

    if (StringUtils.isNotEmpty(includeParentDir)) {
        includeParentDirectory = Boolean.parseBoolean(includeParentDir);
    }
    boolean resultStatus = false;
    StandardFileSystemManager manager = FileConnectorUtils.getManager();
    FileObject souFile = null;
    FileObject destFile = null;
    try {
        souFile = manager.resolveFile(source, opts);
        destFile = manager.resolveFile(destination, opts);
        if (!souFile.exists()) {
            log.error("The File Location does not exist.");
            return false;
        }
        if (StringUtils.isNotEmpty(filePattern)) {
            FileObject[] children = souFile.getChildren();
            for (FileObject child : children) {
                if (FileType.FILE.equals(child.getType())) {
                    copy(child, destination, filePattern, opts, manager);
                } else if (FileType.FOLDER.equals(child.getType())) {
                    String newSource = source + File.separator + child.getName().getBaseName();
                    copyFile(newSource, messageContext, opts);
                }
            }
        } else {
            if (FileType.FILE.equals(souFile.getType())) {
                String name = souFile.getName().getBaseName();
                FileObject outFile = manager.resolveFile(destination + File.separator + name, opts);
                outFile.copyFrom(souFile, Selectors.SELECT_ALL);
            } else if (FileType.FOLDER.equals(souFile.getType())) {
                if (includeParentDirectory) {
                    destFile = manager
                            .resolveFile(destination + File.separator + souFile.getName().getBaseName(), opts);
                    destFile.createFolder();
                }
                destFile.copyFrom(souFile, Selectors.SELECT_ALL);
            }
            if (log.isDebugEnabled()) {
                log.debug("File copying completed from " + source + "to" + destination);
            }
        }
    } catch (FileSystemException e) {
        throw new SynapseException("Unable to copy a file/folder", e);
    } finally {
        manager.close();
    }
    try {
        souFile.close();
        destFile.close();
    } catch (FileSystemException e) {
        log.error("Error while closing the FileObject", e);
    }
    return true;
}

From source file:org.wso2.carbon.connector.FileDelete.java

/**
 * Delete the file//from w w w  .j a v a2s.  co  m
 *
 * @param source         Location of the file
 * @param messageContext The message context that is generated for processing the file
 * @return Return the status
 */
private boolean deleteFile(String source, MessageContext messageContext) {
    boolean resultStatus = false;
    StandardFileSystemManager manager = null;
    try {
        manager = FileConnectorUtils.getManager();
        // Create remote object
        FileObject remoteFile = manager.resolveFile(source, FileConnectorUtils.init(messageContext));
        if (remoteFile.exists()) {
            if (remoteFile.getType() == FileType.FILE) {
                //delete a file
                remoteFile.delete();
            } else if (remoteFile.getType() == FileType.FOLDER) {
                //delete folder
                remoteFile.delete(Selectors.SELECT_ALL);
            }
            resultStatus = true;
        } else {
            log.error("The file does not exist.");
            resultStatus = false;
        }
        if (log.isDebugEnabled()) {
            log.debug("File delete completed with. " + source);
        }
    } catch (IOException e) {
        handleException("Error occurs while deleting a file.", e, messageContext);
    } finally {
        if (manager != null) {
            manager.close();
        }
    }
    return resultStatus;
}

From source file:org.wso2.carbon.connector.FileDeleteConnector.java

/**
 * Delete an existing file/folder.// ww w  .jav  a 2s.  c o  m
 *
 * @param messageContext The message context that is generated for processing the file.
 * @return true, if the file/folder is successfully deleted.
 */
private boolean deleteFile(MessageContext messageContext) {
    String source = (String) ConnectorUtils.lookupTemplateParamater(messageContext,
            FileConstants.FILE_LOCATION);
    StandardFileSystemManager manager = FileConnectorUtils.getManager();
    FileObject remoteFile = null;
    try {
        // create remote fileObject
        remoteFile = manager.resolveFile(source, FileConnectorUtils.init(messageContext));
        if (!remoteFile.exists()) {
            log.error("The file does not exist.");
            return false;
        }
        if (FileType.FILE.equals(remoteFile.getType())) {
            // delete a file
            remoteFile.delete();
        } else if (FileType.FOLDER.equals(remoteFile.getType())) {
            String filePattern = (String) ConnectorUtils.lookupTemplateParamater(messageContext,
                    FileConstants.FILE_PATTERN);

            if (StringUtils.isNotEmpty(filePattern) && !"*".equals(filePattern)) {
                FileObject[] children = remoteFile.getChildren();
                for (FileObject child : children) {
                    if (child.getName().getBaseName().matches(filePattern)) {
                        child.delete();
                    }
                }
            } else {
                // delete folder
                remoteFile.delete(Selectors.SELECT_ALL);
            }
        }
        if (log.isDebugEnabled()) {
            log.debug("File delete completed with " + source);
        }
    } catch (FileSystemException e) {
        throw new SynapseException("Error while deleting file/folder", e);
    } finally {
        // close the StandardFileSystemManager
        manager.close();
        try {
            if (remoteFile != null) {
                // close the file object
                remoteFile.close();
            }
        } catch (FileSystemException e) {
            log.error("Error while closing the FileObject", e);
        }
    }
    return true;
}

From source file:org.wso2.carbon.connector.FileExist.java

/**
 * Check is that file exists//from  w  w w  . j  a v a 2s .c  om
 *
 * @param source         Location of the file
 * @param messageContext The message context that is generated for processing the file
 * @return return a resultStatus
 */
private boolean isFileExist(String source, MessageContext messageContext) {
    boolean isFileExist = false;
    StandardFileSystemManager manager = null;
    FileSystemOptions opt = FileConnectorUtils.init(messageContext);
    try {
        manager = FileConnectorUtils.getManager();
        // Create remote object
        FileObject remoteFile = manager.resolveFile(source, opt);
        if (remoteFile.exists()) {
            isFileExist = true;
        }
        if (log.isDebugEnabled()) {
            log.debug("File exist completed with. " + source);
        }
    } catch (IOException e) {
        isFileExist = false;
        handleException("Error while processing a file.", e, messageContext);
    } finally {
        if (manager != null) {
            manager.close();
        }
    }
    return isFileExist;
}

From source file:org.wso2.carbon.connector.FileExistConnector.java

/**
 * Determine if file/folder exists./*  ww w  .j  ava 2  s. co m*/
 *
 * @param messageContext The message context that is generated for processing the file.
 * @return true, if the file/folder exists.
 */
private boolean isFileExist(MessageContext messageContext) {
    String source = (String) ConnectorUtils.lookupTemplateParamater(messageContext,
            FileConstants.FILE_LOCATION);

    StandardFileSystemManager manager = FileConnectorUtils.getManager();
    FileObject remoteFile = null;
    try {
        FileSystemOptions opt = FileConnectorUtils.init(messageContext);
        // create remote fileObject
        remoteFile = manager.resolveFile(source, opt);
        if (!remoteFile.exists()) {
            return false;
        }
        if (log.isDebugEnabled()) {
            log.debug("File exist completed with. " + source);
        }
    } catch (FileSystemException e) {
        throw new SynapseException("Error while processing a file.", e);
    } finally {
        // close the StandardFileSystemManager
        manager.close();
        try {
            if (remoteFile != null) {
                // close the file object
                remoteFile.close();
            }
        } catch (FileSystemException e) {
            log.error("Error while closing the FileObject", e);
        }
    }
    return true;
}

From source file:org.wso2.carbon.connector.FileList.java

public void list(MessageContext messageContext, String fileLocation) throws SynapseException {

    try {//from   www  .j a v a  2s  .c  o m
        FileSystemOptions opts = FTPSiteUtils.createDefaultOptions();
        FileSystemManager manager = VFS.getManager();

        // Create remote object
        FileObject remoteFile = manager.resolveFile(fileLocation, opts);
        if (remoteFile.exists()) {
            log.info("Reading a zip File.");
            // open the zip file
            InputStream input = remoteFile.getContent().getInputStream();
            ZipInputStream zip = new ZipInputStream(input);
            OMFactory factory = OMAbstractFactory.getOMFactory();
            String outputResult;
            OMNamespace ns = factory.createOMNamespace(FileConnectorConstants.FILECON,
                    FileConnectorConstants.NAMESPACE);
            OMElement result = factory.createOMElement(FileConnectorConstants.RESULT, ns);
            ZipEntry zipEntry;
            // iterates over entries in the zip file
            while ((zipEntry = zip.getNextEntry()) != null) {
                if (!zipEntry.isDirectory()) {
                    //add the entries
                    outputResult = zipEntry.getName();
                    OMElement messageElement = factory.createOMElement(FileConnectorConstants.FILE, ns);
                    messageElement.setText(outputResult);
                    result.addChild(messageElement);
                }
            }
            messageContext.getEnvelope().getBody().addChild(result);

            if (log.isDebugEnabled()) {
                log.info("The envelop body with the read files path is "
                        + messageContext.getEnvelope().getBody().toString());
            }
            //we must always close the zip file
            zip.close();
        } else {
            log.error("Zip file does not exist.");
        }
    } catch (IOException e) {
        handleException("Unable to process the zip file", e, messageContext);
    }
}

From source file:org.wso2.carbon.connector.FileListZip.java

/**
 * @param messageContext The message context that is generated for processing the file
 * @param source         Location of the zip file
 *///from   www  . java2s  .co m
private void list(MessageContext messageContext, String source) {
    StandardFileSystemManager manager = null;
    try {
        manager = FileConnectorUtils.getManager();
        ResultPayloadCreate resultPayload = new ResultPayloadCreate();

        // Create remote object
        FileObject remoteFile = manager.resolveFile(source, FileConnectorUtils.init(messageContext));
        if (remoteFile != null && remoteFile.exists()) {
            // open the zip file
            InputStream input = remoteFile.getContent().getInputStream();
            ZipInputStream zip = new ZipInputStream(input);
            OMFactory factory = OMAbstractFactory.getOMFactory();
            String outputResult;
            OMNamespace ns = factory.createOMNamespace(FileConstants.FILECON, FileConstants.NAMESPACE);
            OMElement result = factory.createOMElement(FileConstants.RESULT, ns);
            resultPayload.preparePayload(messageContext, result);
            ZipEntry zipEntry;
            // iterates over entries in the zip file
            while ((zipEntry = zip.getNextEntry()) != null) {
                if (!zipEntry.isDirectory()) {
                    //add the entries
                    outputResult = zipEntry.getName();
                    OMElement messageElement = factory.createOMElement(FileConstants.FILE, ns);
                    messageElement.setText(outputResult);
                    result.addChild(messageElement);
                }
            }
            messageContext.getEnvelope().getBody().addChild(result);
            if (log.isDebugEnabled()) {
                log.debug("The envelop body with the read files path is "
                        + messageContext.getEnvelope().getBody().toString());
            }
            //we must always close the zip file
            zip.close();
            if (log.isDebugEnabled()) {
                log.debug("File listZip completed with. " + source);
            }
        } else {
            log.error("Zip file does not exist.");
        }
    } catch (IOException e) {
        handleException("Error while processing a file.", e, messageContext);
    } finally {
        if (manager != null) {
            manager.close();
        }
    }
}

From source file:org.wso2.carbon.connector.FileListZipConnector.java

/**
 * List all the files inside zip file./*  w  w  w .ja  v  a2  s.  c o  m*/
 *
 * @param messageContext The message context that is generated for processing the file.
 */
private void listAllFiles(MessageContext messageContext) throws FileSystemException {
    String source = (String) ConnectorUtils.lookupTemplateParamater(messageContext,
            FileConstants.FILE_LOCATION);
    StandardFileSystemManager manager = FileConnectorUtils.getManager();
    FileObject remoteFile = manager.resolveFile(source, FileConnectorUtils.init(messageContext));
    if (!remoteFile.exists()) {
        log.error("Zip file location does not exist.");
    }
    // open the zip file
    InputStream input = remoteFile.getContent().getInputStream();
    ZipInputStream zip = new ZipInputStream(input);
    OMFactory factory = OMAbstractFactory.getOMFactory();
    OMNamespace ns = factory.createOMNamespace(FileConstants.FILECON, FileConstants.NAMESPACE);
    OMElement result = factory.createOMElement(FileConstants.RESULT, ns);
    ZipEntry zipEntry;
    try {
        while ((zipEntry = zip.getNextEntry()) != null && !zipEntry.isDirectory()) {
            // add the entries
            String outputResult = zipEntry.getName();
            OMElement messageElement = factory.createOMElement(FileConstants.FILE, ns);
            messageElement.setText(outputResult);
            result.addChild(messageElement);
        }
    } catch (IOException e) {
        throw new SynapseException("Error while reading the next ZIP file entry", e);
    } finally {
        try {
            zip.close();
        } catch (IOException e) {
            log.error("Error while closing ZipInputStream");
        }
        try {
            remoteFile.close();
        } catch (FileSystemException e) {
            log.error("Error while closing the FileObject", e);
        }
        // close the StandardFileSystemManager
        manager.close();
    }
    ResultPayloadCreator.preparePayload(messageContext, result);
    if (log.isDebugEnabled()) {
        log.debug("The envelop body with the read files path is "
                + messageContext.getEnvelope().getBody().toString());
    }
}

From source file:org.wso2.carbon.connector.FileMove.java

/**
 * Move the files//  w w w .  j av  a  2 s.  c o m
 *
 * @param source      Location of the file
 * @param destination Destination of the file
 * @return return a resultStatus
 */
private boolean moveFile(String source, String destination, MessageContext messageContext) {
    boolean resultStatus = false;
    StandardFileSystemManager manager = null;
    try {
        manager = FileConnectorUtils.getManager();
        // Create remote object
        FileObject remoteFile = manager.resolveFile(source, FileConnectorUtils.init(messageContext));
        if (remoteFile.exists()) {
            FileObject file = manager.resolveFile(destination, FileConnectorUtils.init(messageContext));
            if (!file.exists()) {
                file.createFolder();
            }
            if (remoteFile.getType() == FileType.FOLDER) {
                remoteFile.moveTo(file);
            } else if (remoteFile.getType() == FileType.FILE) {
                FileObject newFile = manager.resolveFile(
                        destination + File.separator + remoteFile.getName().getBaseName(),
                        FileConnectorUtils.init(messageContext));
                remoteFile.moveTo(newFile);
            }
            resultStatus = true;
            if (log.isDebugEnabled()) {
                log.debug("File move completed from " + source + " to " + destination);
            }
        } else {
            log.error("The file/folder location does not exist.");
            resultStatus = false;
        }
    } catch (IOException e) {
        handleException("Unable to move a file/folder.", e, messageContext);
    } finally {
        if (manager != null) {
            manager.close();
        }
    }
    return resultStatus;
}